| In the context of the government’s vigorous efforts to build an ecological garden city,the pace of construction of parks and green spaces in cities has been accelerating,and urban residents’ demand for parks and green spaces is also increasing.However,people tend to pay more attention to the internal landscape of the park and pay less attention to the edge of the park.The accessible edge space in the park serves as a transition zone connecting the city and the park and a space for carrying various behaviors and activities of the citizens.The information exchange in the space is frequent,which has more complex characteristics and more influences than the internal space of the park.In addition,on the basis of the above characteristics,the accessible edge space in mountain parks also has higher landscape value and ecological value due to its unique terrain conditions.Therefore,enhancing the landscape vitality of the accessible edge space in mountain parks can not only promote the integration and development of the city and the park,improve the quality of the urban living environment,but also shape the characteristics of the regional landscape and increase the charm of the city.This article takes the accessible edge space in Chongqing’s mountain parks as the research object.Firstly,through the research of related theories,it summarizes and sorts out the characteristics of the edge space and landscape vitality of mountain parks.Then this article conducted a field survey on the accessible edge spaces of 23 mountain parks in the central city of Chongqing.Based on the research status of the space,the surrounding environment and the main components of the space are summarized.According to the service function and morphological structure of the space,the accessible edge space of the mountain park in the downtown area of Chongqing is divided into four types: the distribution square type,the rest node type,the recreation turf type and the viewing platform type.And according to the characteristics of behavior,the activities in the space are divided into four types:exercise and fitness,leisure and entertainment,rest and communication,and stop and watch.On the basis of theoretical research and field investigation,a preliminary establishment of a landscape vitality evaluation index system for the edge space accessible to mountain parks has been established.The quantitative comprehensive evaluation method is used to evaluate the landscape vitality of 16 representative accessible edge spaces of four different types from the two dimensions of vitality’s external representation and vitality components,and obtain the main influencing factors of the landscape vigor of each type of accessible edge space,sorting from highest to lowest by degree of correlation are as follows: ○1 The size of residential building land,density of sanitation facilities,adjacent road width,park visitor capacity,number of parking lots,space aspect ratio and walkable range are the main factor affecting the landscape vitality of the edge space of the distribution square type.○2 The comfort of recreational facilities,walkable range,space aspect ratio,the size of cultural and entertainment building land,plant landscape aesthetics,green coverage rate,spatial openness,number of bus stops,number of parking lots,facility maintenance status,density of sanitation facilities,subspace density and plant species are the main factor affecting the landscape vitality of the edge space of the rest node type.○3 Subspace density and green coverage rate are the main factor affecting the landscape vitality of the edge space of the recreation turf type.○4 Density of sanitary facilities,terrain height difference,the size of cultural and entertainment building land,the size of office building land,number of road intersections,comfort of recreational facilities,space aspect ratio and number of parking lots are the main factor affecting the landscape vitality of the edge space of the viewing platform type.Then combined with the actual conditions of different types of accessible edge spaces and the main influencing factors of landscape vitality,the main reasons for the low landscape vitality of some spaces are summarized.The main reasons for the low landscape vitality of the edge space of the distribution square type are the poor accessibility of traffic and the excessively large spatial scale.The main reasons for the low landscape vitality of the edge space of the rest node type are the lack of various types of communication subspaces and the poor rest environment.The main reasons for the low landscape vitality of the edge space of the recreation turf type are the fragmentation of the activity space,the shade of plants and the lack of characteristics.The main reasons for the low landscape vitality of the edge space of the viewing platform type are the poor spatial location,single space level and function.According to the results of the landscape vitality evaluation,specific key points for enhancing landscape vitality are proposed for different types of accessible edge spaces in mountain parks.Among them,the key point to enhance the landscape vitality of the edge space of the distribution square type lies in the rational layout of the location,the construction of a pleasant scale,and the balance of the traffic function.The key point to enhance the landscape vitality of the edge space of the rest node type is to create a space for communication and optimize the rest environment.The key point to enhance the landscape vitality of the edge space of the recreational turf type is to create an open space and highlight the characteristics of plants.The key point to enhance the landscape vitality of the edge space of the viewing platform type is to use the park’s interior view and focus on functional compounding.And finally,from the three aspects of the overall environment,spatial components and maintenance management of the accessible edge space in mountain parks,specific strategies for enhancing landscape vitality are formulated for the four different types of accessible edge spaces. |
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